Billiard-table.



K. A. A. BRACHER.

BILLIARD TABLE.

APPLICATION FILED NOV.16, 190s.

Eatented Feb. 15, 1910.

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.MC A M K. A. A. BRACHER.

BILLIARD TABLE.

APPLICATION FILED R0116. 190s.

Patented Feb 15, 1910.

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Witness e5.

KARL ALBERT AUGUST BRAOHER, OF TORONTO, ONTARIO, CANADA.

BILLIARD-TABLE.

Application filed November 16, 1908.

T 0 all whom it may concern:

Be it known that I, KARL ALBERT AUGUST BRACHER, of the city of Toronto, in the county of York and Province of Ontario, Dominion of Canada, have invented certain new and useful Improvements in Billiard-Tables; and I hereby declare that the following is a full, clear, and exact description of the same.

In my concurrent application 405,289, filed December 5th, 1907, I have shown and described a billiard table consisting of several table bed sections constructed of concrete material reinforced by metal netting. It has been found however in the field of actual use that the reinforcing netting used in that construction is insufiicient to prevent the warping of the table bed sections, and that the playing surface of the billiard table in some instances varied, from one sixteenth to one eighth of an inch from an exact level.

The present invention relates to a reinforcing means so disposed and arranged in the concrete mixture as to prevent the warping of the playing surface by resisting the torsional strains imposed upon it, and this reinforcing means may be generally described as consisting of several truss bars extending across the table bed sections, laterally of the billiard table bed, and downwardly arched between their ends, and several truss bars extending across the table bed sections, lengthwise of the billiard table bed, and downwardly arched between their ends, the downwardly arched portions of the first mentioned truss bars being located beneath the ends of the second mentioned truss bars, and truss rods angularly disposed and preferably connected to the second mentioned truss bars to transmit the strain upon the truss rods to the second mentioned truss bars and thus evenly distribute them to the entire surface of the table bed sections, the strain resisting quality of the table bed sections being increased by the formation of a set of concrete ribs extending across the table bed sections laterally of the billiard table bed, and a second set of concrete ribs extending across the table bed sections lengthwise of the billiard table bed.

For an understanding of the invention reference is to be had to the following description and to the accompanying drawings in which Figure l, is a horizontal section showing the formation and arrangement of the rein- Specification of Letters Patent.

Patented Feb. 15, 1910 Serial No. 462,932.

forcing means. Fig. 2, is a plan view of the under side of one of the table bed sections. Fig. 3, is a section taken on the line aa Fig. 2. Fig. 4:, is a section. taken on the line Z b Fig. 2. Fig. 5, is a perspective View of a portion of the reinforcing means. Fig. 6, is a modification of the construction shown in Fig. 5.

Like characters of reference refer to like parts throughout the specification and drawings.

The billiard table bed as shown in the accompanying drawings consists of three table bed sections a a a made of a concrete mixture strengthened by a reinforcing means, but the number of table bed sections may vary according to the size of the billiard table bed.

The reinforcing means consists of truss bars 2 placed in the table bed sections so that they will extend lengthwise of the billiard table bed and bind the concrete mix: ture together in one direction. The ends 2 of the truss bars 2 are located below the middle of the depth of the table bed motions as shown in Fig. 4, and are downwardly arched between their ends as shown in Figs. 4, 5 andv 6. Extending across each table bed section laterally of the billiard table bed are truss bars as in a line with the sides of the table bed sections and downwardly arched between their ends as shown in Figs. 3, 5, and 6. The ends of the truss bars 00 overpass the two outer truss bars a and the arched parts of the truss bars at are below the ends of the truss bars a a between the two outer truss bars. One purpose of the truss bars 00 is to bind the concrete mixer together in the opposite direction to the truss bars 2.

The truss bar 2, located at the middle of each table bed section, is straight, that is, is not of an arched formation, and is located at about the middle of the depth of the table bed section. Associated with each truss bar a are truss rods 00 which are laterally arched between their ends so that their arched parts will neither project above nor below the plane of the truss bars a. One end of each truss rod 00 is downwardly arched and these downwardly arched ends are connected to the truss bars 2 adjacent to the truss bar 2. The purpose of this arrangement of the truss bar 2 and truss rods .10 is to provide for the formation of a seat 2 at the middle of the bottom surface of the table bed section to receive the part a of the table bed framing. The truss bars a are located between the middle truss bars 2 and the sides of the table bed section, and associated with the truss bars a are truss rods as upwardly arched between each adjacent pair of truss bars. The truss rods 00 may be continuous from end to end as shown which extend lengthwise of the billiard table bed, and the truss bars as are embedded in concrete ribs 00 extending laterally of the billiard table bed and integral with the remaining concrete of the table bed sections, the ribs 00 and m adding to the strength and rigidity of the table bed sections in resisting the torsional strains.

In table bed sections of small dimensions the truss rods 00 00 may be omitted but the truss bars 00, z and z are employed in the manner and for the purpose above described.

Having thus fully described my invention what I claim as new and desire to secure by Letters Patent is 1. A billiard table bed constructed of concrete reinforced by two sets of truss bars angularly disposed to each other, and concrete ribs inclosing the truss bars of one set and forming a unitary part of the billiard table bed.

2. A billiard table bed constructed of concrete reinforced by two sets of truss bars, the truss bars of one set being angularly disposed to the truss bars of the other set, truss rods intersecting one set of truss bars and concrete ribs inclosing one set of truss bars and forming a unitary part of the billiard table bed.

3. A billiard table bed constructed of con crete reinforced by two sets of truss bars arched between their ends, one set of truss bars being arranged lengthwise of the billiard table bed, and the other set arranged at an angle to the first mentioned set, and concrete ribs inclosing the arched truss bars and forming a unitary part of the remaining concrete of the billiard table bed.

4. A billiard table bed constructed of con crete reinforced by two sets of truss bars arched between their ends, one set of truss bars being arranged lengthwise of the billiard table bed and the other set arranged at an angle to the first mentioned set, truss rods intersecting and arched between the bars of one set, and concrete ribs inclosing the arched truss bars and forming a unitary part of the remaining concrete of the billiard table bed.

5. A billiard table bed constructed of concrete reinforced by two sets of truss bars, all of the truss bars of one set being clownwardly arched between their ends, and the truss bars of the other set between the middle truss bar and the sides of the billiard table bed being downwardly arched between their ends, the middle truss bar being substantially straight, and truss rods upwardly arched between, and intersecting, the truss bars of the second mentioned set.

6. A billiard table bed constructed of concrete reinforced by two sets of truss bars, all of the truss bars of one set being downwardly arched between their ends, and the truss bars of the other set between the mid dle truss bar and the sides of the billiard table bed being downwardly arched between their ends, the middle bar being substantially straight, and truss rods upwardly arched between, and intersecting, the truss bars of the second mentioned set, and concrete ribs inclosing the arched truss bars and forming a unitary part of the remaining concrete of the table bed sections.

Toronto, Oct. 20th, 1908.

KARLTALBERT AUGUST BRAOHER.

Signed in the presence of CHARLES H. RIoHns', OLIVE BATEMAN. 

